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DBIO - Artigos em Revistas Nacionais / Articles in National Journals

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http://hdl.handle.net/10400.3/14
Artigo ou um editorial publicado numa revista científica.
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Percorrer DBIO - Artigos em Revistas Nacionais / Articles in National Journals por assunto "Agrotis segetum"

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  • Seasonal distribution and sex ratio of eleven noctuid species (Insecta, Lepidoptera) captured in blacklight traps on Terceira Island (Azores)
    Publication . Vieira, Virgílio; Araújo, M. G. Gomes de; Tavares, João
    The adult flight periods of Agrotis segetum (DENNIS & SCHIFFERMÜLLER), Noctua pronuba (LINNAEUS), Noctua atlantica (WARREN), Peridroma saucia (HÜBNER), Xestia c-nigrum (LINNAEUS), Mythimna loreyi (DUPONCHEL), Phlogophora meticulosa (LINNAEUS), Phlogophora interrupta(WARREN), Mesapamea storai (REBEL), Autographa gamma (LINNAEUS), and Trichoplusia orichalcea (FABRICIUS) (Lepidoptera: Noctuidae) were studied between November 1992 and November 1993, at Terra Chã (110 m), Granja (310 m), Fajãs (310 m) and Santa Bárbara (525 m) on the island of Terceira, Azores archipelago, using Pennsylvania blacklight traps. While there was evidence of considerable fluctuations in abundance, A. segetum, P. saucia, X. c-nigrum, M. loreyi and P. meticulosa were present continuously at Santa Bárbara. In contrast N. pronuba, N. atlantica, M. storai, P. interrupta, A. gamma, and T. orichalcea were generally captured from Spring to beginning of Autumn. For any given species both sexes were captured simultaneously. Males of X. c-nigrum, P. meticulosa (Santa Bárbara), A. segetum and M. storai (Fajãs) were more frequent than females, while in the other species females were more abundant. However, in no case does the sex ratio deviates entirely from 1:1. Under an integrated pest management perspective, blacklight trap is an important technique for agricultural warning services, allowing to forecast the outbreaks of agricultural pests.
    1998Artigo científico Acesso aberto Ver mais
  • Seasonal distribution and sex ratio of five noctuid species (Insecta, Lepidoptera) captured in blacklight traps on São Miguel - Azores
    Publication . Silva, Michael; Tavares, João; Vieira, Virgílio
    The adult flight periods of Agrotis ipsilon (HÜFNAGEL), Agrotis segetum (DENNIS & SCHIFERMÜLLER), Noctua pronuba LINNAEUS, Peridroma saucia (HÜBNER) and Xestia c-nigrum (LINNAEUS) (Lepidoptera, Noctuidae) were studied between July of 1988 and December of 1989, at Ribeira Grande, Arribanas and Lagoa do Congro on the island of São Miguel, using Pennsylvania blacklight traps. While there was evidence of considerable fluctuations in density, A. ipsilon, A. segetum, P. saucia and X c-nigrum were present continuously at the three locations. In contrast N. pronuba was only captured between July and September. For any given species both sexes were captured simultaneously. In X c-nigrum males were more frequent than females while in the other species females were more abundant. However, in no case does the sex-ratio deviates entirely from 1:1.
    1995Artigo científico Acesso aberto Ver mais